Home / 373,205,720.38-514,960,121.20-216,536,913.58

Finding the Fourth Proportional to 373,205,720.38, 514,960,121.20 and 216,536,913.58

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Solution

The fourth proportional to 373,205,720.38, 514,960,121.20 and 216,536,913.58 is: 298,783,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,205,720.38 : 514,960,121.20 = 216,536,913.58 : x
  2. Step 2: Convert to fraction form
    373,205,720.38/514,960,121.20 = 216,536,913.58/x
  3. Step 3: Cross multiply
    373,205,720.38x = 514,960,121.20 × 216,536,913.58
  4. Step 4: Simplify right side
    373,205,720.38x = 111,507,875,261,430,736
  5. Step 5: Solve for x
    x = 111,507,875,261,430,736/373,205,720.38
  6. Step 6: Final answer
    x = 298,783,939.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.